Chemistry-Hess's Law

NEET Chemistry Hess's Law MCQ Question

Type: MCQ-diagram based-Easy-Class 11

Consider a diagram depicting a multi-step reaction pathway where the conversion of reactants to products is shown. Which label correctly represents the concept of Hess's Law in this diagram?

Question diagram
A

The sum of enthalpy changes for intermediate steps

B

The enthalpy change of the final step only

C

The enthalpy change of the initial step only

D

The difference between enthalpy changes of initial and final steps

Correct Answer

Option A

Detailed Explanation

According to the NCERT context, Hess's Law states that the total enthalpy change for a reaction is the sum of the enthalpy changes for each intermediate step.

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